. >> the mayor stands his ground after a law office is set on fire and the collision between a big rig and a amtrak train and why it could have been worse. >> and vacant church being trance formed in san francisco. and what they aren't places of worship anymore. there are authorities investigating the sexual relationship with a teacher and studentent. >> the key question is did the teacher take his own life? police suspect that is what happened and we have the latest on this story. >> this is a very tight knit community. many knew what is going on. many knew the teacher and were shocked to find this out. the parents and students were informed of the death around by a robo call around 3:15 this afternoon. police believe the 28-year-old known to most students